Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 25 for “"MXene"”.
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RAPID FABRICATION OF CUSTOMIZABLE MXENE/POLYDOPAMINE (MXPDA) ELECTRODES
… This thesis explores the innovative use of MXene, specifically the two-dimensional nanomaterial TI3C2Tx, in conjunction with polydopamine (PDA) to develop customizable microelectrode arrays (MEAs) that can be rapidly fabricated for use in surgical settings. MXenes are selected for their …
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An Approach Towards Sustainable Synthesis of MXene and High-Performance Cementitious Composites
… investigates innovative methods for synthesizing MXenes and enhancing cementitious materials to meet the critical need for sustainable manufacturing and improved mechanical properties in structural materials. Central to this research is the advancement in material science across two key areas: the …
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Two-Dimensional Titanium Carbide MXene for Lithium-ion Conductive Solid-state Electrolytes
… two-dimensional (2D) titanium carbide (Ti3C2Tx) MXene as a nanofiller. 2D Ti3C2Tx MXene was synthesized using a mild etching approach involving low-toxicity acids, enabling a safer and more environmentally friendly alternative to traditional synthesis methods. The resulting MXene was …
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Data-driven design of MXene aerogels with programmable mechanical performance via active learning and collaborative robots
… possesses superior mechanical stability. Ti3C2Tx MXene-based aerogels with high electrical conductivities have been demonstrated as promising piezoresistive materials for the fabrication of intelligent pressure sensors for diverse sensing applications, from ultra-low stress vibration detection to …
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Synthesis, characterization and chemistry of two-dimensional transition metal carbides and nitrides (MXenes)
<p>"MXenes represent a relatively new and quickly growing family of two-dimensional (2D) early transition-metal carbides and nitrides first synthesized in 2011 from bulk layered crystalline MAX phases. Because of their 2D structure and unique combination of high conductivity and hydrophilicity, …
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Influence of synthesis parameters on the properties of MXenes: a comparative study of ammonium bifluoride and HCl-LiF etching methods for membrane reactor applications
MXenes, a class of two-dimensional materials derived from MAX phases, hold immense potential for applications in membrane technology due to their unique structural and functional properties. This thesis explores the synthesis of MXenes from Ti3AlC2 MAX phase using various etching methods, including …
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MULTIFUNCTIONAL BEHAVIORS OF TWO-DIMENSIONAL MATERIALS AND THEIR COMPOSITES
… them, we focused on graphene and TMC/Ns (i.e., MXenes), as well as their composites. Unlike the well-known graphene, MXenes, are relatively new and typically synthesized by the selective etching of the “A” layers from the layered carbides and /or nitrides known as MAX phases, which introduce …
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Nanoscale imaging of MXenes by X-ray microscopy
… sustainable energy systems. In this context, MXenes, a novel class of two-dimensional (2D) materials, have attracted considerable interest for their promising applications in energy storage. MXenes, with their unique structure and chemical diversity, offer a combination of metallic …
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Synthesis of Multifunctional One-dimensional and Two-dimensional Highly Conductive Nanomaterials for Charge Storage Applications
… including silver nanowire (AgNW), graphene, and MXene were synthesized and used for charge storage. AgNW with high purity and aspect ratio was incorporated in poly(methyl methacrylate) (PMMA) to fabricate a high performance dielectric material. To improve the dielectric performance of the …
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Building And Validating Next-Generation Neurodevices Using Novel Materials, Fabrication, And Analytic Strategies
… a recently discovered 2D nanomaterial, Ti3C2 MXene, to improve the capabilities and performance of neural microelectronic devices. Third, I fabricate and validate human-scale Ti3C2 MXene epidermal electrode arrays in clinical applications. Leveraging the unique solution-processability of Ti3C2 …
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Charge transport mechanism within 2D material films and its role on field effect transistor and capacitor technology
… as transition metal dichalcogenides (TMDs) and MXenes have opened up a plethora of untapped potential for better device architectures and performance. One of the areas where 2D materials are regarded as disruptive technology is field-effect transistors (FETs), where 2D materials can offer high …
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Carbon Hybrid Materials for Electromagnetic Interference (EMI) Shielding and Charge Storage Applications
… nanocomposites contain new 2D materials called MXene and PVA as a polymer matrix. By implementing solution casting and vacuum-assisted filtration (VAF) flexible thin-films with exceptional dielectric properties (solution casting at10.0 wt% MXene: ε^'=370.5 ,tanδ=0.11 and VAF at10.0 wt% MXene: …
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Inkjet Printing of 2d Materials on Flexible and Rigid Substrates
… metal carbides, nitrides, or carbonitrides (MXenes) and hexagonal boron nitride (h-BN) hold enormous potential for the next generation printable electronics. When these materials are formulated into inkjet printable inks, they can be incorporated with current inkjet printing technology. This …
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Ti3C2Tx as an Advanced Support Material for Polymer Electrolyte Fuel Cell Catalysts to Facilitate the Oxygen Reduction Reaction
… carbonaceous support was therefore undertaken. A MXene, Ti3AlC2 was selected for assessment based on its theoretically suitable electrical and thermal conductivities, as well as its possession of among the strongest resistance to oxidation of the many different MAX phases. The synthesis of high …
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Novel Photothermal Materials and Thermally Engineered Membranes for Solar Desalination
… photothermal materials (polydopamine (PDA), MXene and polypyrrole (PPy)) for efficient PMD. Their excellent photothermal property, abundant functional groups and facile processability make them highly appealing in achieving high-performance PMD membranes. Taken together, this work further our …
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Structural Characterization and Material Property Evaluation in Polymer-Derived SiOC Ceramics and Ceramic Nanocomposites
… comprised of stacked 2D nanosheets) and Ti3C2Tx 'MXene' (a rapidly growing class of two-dimensional transition metal carbides/nitrides) to create nanostructured ceramic composites. Phase formation, porosity, and electrical conductivity will be analyzed to demonstrate attractive multifunctional …
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Advanced Manufacturing of Functional Lightweight Conductive Composite Systems for Sustainable and Flexible Electronics
… such as graphene, carbon nanotubes (CNT), and MXene, these nanocomposites achieve the necessary electrical conductivity for EMI shielding. Polymer foams and aerogels, categorized as lightweight CPCs, are widely utilized in applications including thermal insulation, impact absorption, acoustic …
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Study of the Valence Tautomer Complex [Co(sq)(cat)(3-tpp)2] for Applications in Molecular Spintronics
… hexafluoropropylene (PVDF-HFP), and the 2-D Mxene Ti3C2 are also discussed. The next section details equipment development and experimental methods. Thin films of VT molecules were prepared from solution via a drop-casting approach. For thin film analysis, we have developed a custom made, …
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Absorption-Dominant Electromagnetic Interference Shielding Polymer Composites and Foams
… remaining energy. Heterostructured SiC nanowire/MXene (Ti3C2Tx) nanosheet hybrids were developed in the absorption layer via interface engineering, which revealed an improved EM energy dissipation capability and satisfactory impedance matching in theoretical results. Moreover, the input impedance …
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